1995 Chevy Blazer

1995 CHEVROLET BLAZER
135,000 MILES • 6 CYL • 4WD • AUTOMATIC
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CLO107
  • MEMBER
  • 2 POSTS
I have had my blazer tested numerous times and I'm wondering if the pressure could register fine when tested for a fuel pump problem and still have a bad fuel pump. When I drive it and put my foot on the gas..it stalls more often than it stays wondering. I'm totally completely at a loss and apparenlty 4 other mechanics are at this point as well.
Thanks!
Or..any ideas what else could be making it stall?
Oct 15, 2008 at 9:52 AM
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DOCFIXIT
  • ✓Experienced Mechanic
  • 18,828 POSTS
Yes they can test good but under load they may fail also ign module maybe causing problem.
Oct 15, 2008 at 10:08 AM
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JASONRAY
  • ✓Experienced Mechanic
  • 213 POSTS
Pressure can be adequate but the volume could not. Fuel volume is as important as pressure. I've found that the filter is the most likely culprit for poor volume. The pressure will still show to be correct but not much gas is making it through the filter. This will cause it to 'fall on it's face' when you try to accelerate. However, the pump could still be at fault. There's a sock on the bottom of the pump that could also stop up from trash in the tank.
Oct 16, 2008 at 12:10 PM
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